200 PROCEEDINGS OF THE NATIONAL MUSEUM. vol 46. 



Plate 18. 



Skull of Bison regius. 



Type. In American Museum of Natural History. 

 Fig. 1. — Dorsal -view. 

 2. — Rear view. 



Plate 19. 



Skull, horn-cores, and tooth referred to Bison latifrom. 



Fig. 1. — Front view of skull and horn-cores of specimen in Cincinnati Society of 



Natural History. 

 2.— Tooth supposed to belong to B. latifrons. After Leidy. 

 3.~Dorsal view of skull and horn-cores referred by Blake to B. latifrons. After 



Blake. 



